Steps to create Porsche 911/912 Manual Collection:

Create Porsche 911 smart collection
1. Product conditions:
  1. Title contains 911
  2. Title does not contain volkswagen
Create Porsche 912 smart collection
1. Product conditions:
  1. Title contains 912
  2. Title does not contain volkswagen
Create Porsche 911/912 Manual Collection
Add Porsche 911 products to manual collection
1. Go to Products > Click Search and Filter (Magnifying glass / three lines button) > Click Add Filter+ button > Click Collection > Select TEST 911 SMART COLLECTION > Click the checkbox all the way to the left in the header row > Click where it says 50 Selected > Click Select all results > Click button with three dots (...) > Click Add to collection(s) > Select TEST PORSCHE 911/912 MANUAL COLLECTION > Click Save
Add Porsche 912 products to manual collection
1. Go to Products > Click Search and Filter (Magnifying glass / three lines button) > Click Add Filter+ button > Click Collection > Select TEST 912 SMART COLLECTION > Click the checkbox all the way to the left in the header row > Click where it says 50 Selected > Click Select all results > Click button with three dots (...) > Click Add to collection(s) > Select TEST PORSCHE 911/912 MANUAL COLLECTION > Click Save
Can then delete the Porsche 911 and Porsche 912 smart collections

Reinz Full Engine Crank Case Gasket Set for Porsche 911 (3.0L, 1977-80)